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Book Chapter

Subsurface Characterization of Mesaverde Reservoirs in Colorado: Geophysical and Reservoir-Engineering Checks on Predictive Sedimentology

By
John C. Lorenz
John C. Lorenz
Division 6253 Sandia National Laboratories Albuquerque, New Mexico 87185
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Norman R. Warpinski
Norman R. Warpinski
Division 6253 Sandia National Laboratories Albuquerque, New Mexico 87185
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Paul T. Branagan
Paul T. Branagan
CER Corporation Las Vegas, Nevada 89119
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Published:
January 01, 1991

Abstract

The geometries of nonmarine-sandstone reservoirs of the subsurface Mesaverde Group in northwestern Colorado were estimated on the basis of sedimentologic studies. The accuracy of the estimates was subsequently assessed by geophysical tests and reservoir-engineering studies, such as vertical seismic profiles, hydraulic-fracture diagnostics, pressure tests (drawdown/buildup, production, and interference tests), and tracer tests. After the effects of natural fractures on these subsurface tests are accounted for, the tests provide indications of reservoir boundaries, internal heterogeneity, and continuity that are compatible with sedimentologic predictions.

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Contents

Concepts in Sedimentology and Paleontology

The Three-Dimensional Facies Architecture of Terrigenous Clastic Sediments and its Implications for Hydrocarbon Discovery and Recovery

Andrew D. Miall
Andrew D. Miall
Geology Department, University of Toronto, Toronto, Ontario M5S 3B1, Canada
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Noel Tyler
Noel Tyler
Bureau of Economic Geology, The University of Texas at Austin, Austin, Texas 78713-7508 U.S.A.
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SEPM Society for Sedimentary Geology
Volume
3
ISBN electronic:
9781565762268
Publication date:
January 01, 1991

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